Fluid injection apparatus for internal combustion engines



FIG. 1 is a perspective view of the top, left side and front of a fluid injection apparatus for internal combustion engines showing my new design;

FIG. 2 is a perspective view showing the bottom, right side and back of the fluid injection apparatus shown thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a back view thereof. 

The ornamental design for a fluid injection apparatus for internal combustion engines, as shown and described. 